Lightning-Blackhawks Stanley Cup Final is second-most watched final in 18 years

The 2015 Stanley Cup Final has averaged 4.965 million viewers on NBC and NBCSN through the first four games, making it the second-most watched final through four games in 18 years.

Only the 2013 Stanley Cup Final between the the Blackhawks and Bruins had more viewers through the first four games (5.341 million).

Last night’s Game 4 produced the most-watched Stanley Cup Final quarter-hour ever on NBCSN (5.489 million, 10:30-10:45 p.m. ET).

Through four games, this year’s final has produced a 2.91 household rating.

Locally, Chicago’s average rating of 24.1 through four games is up 18 percent compared to its four-game average rating for the 2013 Stanley Cup Final (20.5). In Tampa, Game 4 set the record for highest rating in the market for a Lightning game on NBCSN (13.9).

Chicago’s Game 4 win produced a 2.23 HH rating and averaged 3.914 million viewers, replacing Game 3 of the series as the third-most watched…